Linux 文字改寫的好幫手 sed

文字改寫的好幫手

文字替換

	[root@rhel7 ~]# echo abcd |sed s/a/z/
	zbcd
	#文字替換
	[root@rhel7 ~]# echo "abcd" |sed "s/a/z/"
	zbcd
	#引號

view raw 20160422A01.sh hosted with ❤ by GitHub

	[root@rhel7 ~]# echo old old | sed s/old/new/g
	new new
	#文字替換
	[root@rhel7 ~]# echo "abcd" |sed "s/a/z/"
	zbcd

view raw 20160422A02.sh hosted with ❤ by GitHub

	[root@rhel7 ~]# echo "this is bad" | sed 's/bad/good/w out.txt'
	this is good
	#替換文件內文字
	[root@rhel7 ~]# cat out.txt
	this is good
	#查看結果

view raw 20160422A03.sh hosted with ❤ by GitHub

	[root@rhel7 ~]# echo "今天心情很差" | sed s/差/好/g
	今天心情很好
	#中文範例

view raw 20160422A04.sh hosted with ❤ by GitHub